if the volume of the cylinder is 924 cm³ and the height is 6cm find surface area
Answers
Answer:
264 cm^2 is the answer .
Step-by-step explanation:
here is the explanation
volume of the cylinder = 924cm^3
πr^2h = 924 cm^3
22/7 × r^2 × 6 cm = 924 cm^3
r^2 = 924 × 1/6 × 7/22
r^2 = 154 × 7/22
r^2 = 7 × 7
r^2 = 49
r = root 49
r = 7 cm
now
surface area of cylinder = 2πrh
= 2 × 22/7 × 7 × 6
= 44 × 6
= 264 cm^2 ans.
i hope it will help you buddy..
Answer:
Volume = 924 cm^3
Height = 6 cm
So,
pie r^2 h = 924
=> 22/7 × r^2 × 6 = 924
=> r^2 = 924 × 7
_______
22 × 6
=> r^2 = 7 × 7
=> r = root 7 × 7
=> r = 7
Radius = 7 cm
Surface area = 2 pie r(r + h)
= 2 × 22/7 × 7(7 + 6)
= 2 × 22 × 13
= 572 cm^2
Ans. 572 cm^2
Hope it helps.